公开(公告)号：US11918866B2

公开(公告)日：2024-03-05

申请号：US17378072

申请日：2021-07-16

Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.

Inventor： Patrick Ripp ,  Dan S. Nivanh ,  Mika Becktor ,  Jesse D. Sukman

IPC: A63B53/04

CPC classification number: A63B53/047 ,  A63B53/04 ,  A63B53/0408 ,  A63B53/0416 ,  A63B53/0445 ,  A63B53/0475 ,  A63B2209/00

Abstract: A method comprising, in a striking face of a golf club head, the striking face being formed of a first material having a first hardness, creating a plurality of initial grooves, the initial grooves having a first cross-sectional area (A1) and a first pitch (P1) such that A1/P1>0.0030 in. The method continues with modifying the initial grooves at least by positioning a second material in each of the plurality of initial grooves, the second material having a second hardness that is less than the first hardness, such that the first material and the second material form a plurality of final grooves each having a second cross-sectional area (A2) and a second pitch (P2) such that A2/P2

公开(公告)号：US11090533B2

公开(公告)日：2021-08-17

申请号：US16521804

申请日：2019-07-25

Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.

Inventor： Patrick Ripp ,  Dan S. Nivanh ,  Mika Becktor ,  Jesse D. Sukman

IPC: A63B53/04

Abstract: A method comprising, in a striking face of a golf club head, the striking face being formed of a first material having a first hardness, creating a plurality of initial grooves, the initial grooves having a first cross-sectional area (A1) and a first pitch (P1) such that A1/P1>0.0030 in. The method continues with modifying the initial grooves at least by positioning a second material in each of the plurality of initial grooves, the second material having a second hardness that is less than the first hardness, such that the first material and the second material form a plurality of final grooves each having a second cross-sectional area (A2) and a second pitch (P2) such that A2/P2